command pdf can not work properly

[BurningTeng]

1. Attach process r2 frida://BH93001BDE/com.asp.lovevideo
2. Using \iE libImSDK.so~nativeDoBackground
3. Using command pdf Error message is shown as below: p: Cannot find function at 0x76fdd59314
4. Using pd, it can work

[enovella]

You need to analyze function (af) before doing pdf

s offset
af
pdf // or pdg (if you installed r2ghidra-dec)

[BurningTeng]

I tried pdz related to r2retdec. It does not work. I will try pdz later.

[0x76fdd59318]> pdz decompilation error: Failed to load input file

[trufae]

pdz is not a valid command. why do you want to use pdz?

On 24 Nov 2020, at 18:15, BurningTeng [email protected] wrote:

I tried pdz. It does not work. I will try pdz later.

[0x76fdd59318]> pdz decompilation error: Failed to load input file

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[BurningTeng]

Command pdz is a command which is provided by r2Retdec plugin. It does not work.

I have tried pdg for decompiling. It works well. But when I use command pdf, following message will show. What is the meaning of following message? Linear size differs too much from the bbsum, please use pdr instead. Command pdr and pdg works well.

[enovella]

Try with r2ghidra-dec:

$ r2pm -ci r2ghidra-dec

$ r2 frida://BH93001BDE/com.asp.lovevideo
s `\iE @ libImSDK.so~+nativeDoBackground`
af
pdg

[BurningTeng]

Thanks very much. pdg works well.

But when I use command pdf, following message will show. What is the meaning of following message? Linear size differs too much from the bbsum, please use pdr instead.

[BurningTeng]

I have another question, Is there any method to make first parameter to be type JNIEnv?

[trufae]

this is an issue in r2 not r2frida, lets move the issue in the other project instead